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Record W2145217855

Assessing the effects of forest management techniques on sequestering carbon in northern woodlots

2011· dissertation· en· W2145217855 on OpenAlexaboutno aff
Karen Paquin

Bibliographic record

VenueSpectrum Research Repository (Concordia University) · 2011
Typedissertation
Languageen
FieldEnvironmental Science
TopicForest Management and Policy
Canadian institutionsnot available
Fundersnot available
KeywordsEcological successionCarbon sequestrationEnvironmental scienceCarbon fibersThinningForest managementForestryGreenhouse gasClimate changeAgroforestryGeographyEcologyCarbon dioxideMathematicsBiology
DOInot available

Abstract

fetched live from OpenAlex

Canadian woodlots can play an important role in mitigating climate change through increased carbon sequestration. I conducted a survey of private woodlot owners in Ontario to address three questions related to forest carbon storage and forest management techniques (FMT). The survey responses showed that the largest portion of woodlot owners in this study (46%) is not actively engaged in forest management on their properties, opting for natural succession. Using the data from the survey, I completed four sets of simulations with the CBM-CFS3 model. The simulation results indicated that current carbon storage on the woodlots is 240,753 tons and, if all the landowners let their forests grow without management (natural succession), in 300 years, carbon storage will increase to 501,236 tons. The FMT that stored the greatest amount of carbon over the long-term was a 10% commercial thinning (665,007 tons). Adding a 60-year rotation interval to the 10% commercial thinning increased carbon storage even more (791,027 tons). Conversely, clearcuts and wildfires had devastating effects on carbon storage. After a clearcut or wildfire, transitioning to a red pine forest recovered more lost carbon than any FMT or natural succession. All of these are long-term perspectives, but in the short-term, natural succession may be the best method for storing carbon. However, what made this investigation most interesting was the complexities of the woodlots themselves, their stand make-up, ownership and uses. The diversity of these woodlots may offer a path of least resistance to increasing carbon storage on them.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.371
Threshold uncertainty score0.961

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.019
GPT teacher head0.278
Teacher spread0.260 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2011
Admission routes1
Has abstractyes

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